What is the Least Common Multiple of 984 and 988?
Least common multiple or lowest common denominator (lcd) can be calculated in two way; with the LCM formula calculation of greatest common factor (GCF), or multiplying the prime factors with the highest exponent factor.
Least common multiple (LCM) of 984 and 988 is 243048.
LCM(984,988) = 243048
Least Common Multiple of 984 and 988 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 984 and 988, than apply into the LCM equation.
GCF(984,988) = 4
LCM(984,988) = ( 984 × 988) / 4
LCM(984,988) = 972192 / 4
LCM(984,988) = 243048
Least Common Multiple (LCM) of 984 and 988 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 984 and 988. First we will calculate the prime factors of 984 and 988.
Prime Factorization of 984
Prime factors of 984 are 2, 3, 41. Prime factorization of 984 in exponential form is:
984 = 23 × 31 × 411
Prime Factorization of 988
Prime factors of 988 are 2, 13, 19. Prime factorization of 988 in exponential form is:
988 = 22 × 131 × 191
Now multiplying the highest exponent prime factors to calculate the LCM of 984 and 988.
LCM(984,988) = 23 × 31 × 411 × 131 × 191
LCM(984,988) = 243048
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